/Engine/Source/Runtime/Engine/Public/Animation/CachedAnimDataLibrary.h
Returns the weight of a state, relative to its state machine (specified in the providedFCachedAnimStateData)
static float StateMachine_GetLocalWeight ( [UAnimInstance](API\Runtime\Engine\Animation\UAnimInstance) * InAnimInstance, const [FCachedAnimStateData](API\Runtime\Engine\Animation\FCachedAnimStateData) & CachedAnimStateData )